{-# LANGUAGE CPP #-}
------------------------------------------------------------
-- |
-- Module      :  Numeric.GSL.Special.Psi
-- Copyright   :  (c) Alberto Ruiz 2006-11
-- License     :  GPL
-- Maintainer  :  Alberto Ruiz (aruiz at um dot es)
-- Stability   :  provisional
-- Portability :  uses ffi
--
-- Wrappers for selected functions described at:
--
-- <http://www.google.com/search?q=gsl_sf_psi.h&as_sitesearch=www.gnu.org/software/gsl/manual&btnI=Lucky>
------------------------------------------------------------

module Numeric.GSL.Special.Psi(
  psi_int_e
, psi_int
, psi_e
, psi
, psi_1piy_e
, psi_1piy
, complex_psi_e
, psi_1_int_e
, psi_1_int
, psi_1_e
, psi_1
, psi_n_e
, psi_n
) where

import Foreign(Ptr)
import Foreign.C.Types
import Numeric.GSL.Special.Internal

psi_int_e :: CInt -> (Double,Double)
psi_int_e n = createSFR "psi_int_e" $ gsl_sf_psi_int_e n
foreign import ccall SAFE_CHEAP "gsl_sf_psi_int_e" gsl_sf_psi_int_e :: CInt -> Ptr () -> IO CInt

psi_int :: CInt -> Double
psi_int = gsl_sf_psi_int
foreign import ccall SAFE_CHEAP "gsl_sf_psi_int" gsl_sf_psi_int :: CInt -> Double

psi_e :: Double -> (Double,Double)
psi_e x = createSFR "psi_e" $ gsl_sf_psi_e x
foreign import ccall SAFE_CHEAP "gsl_sf_psi_e" gsl_sf_psi_e :: Double -> Ptr () -> IO CInt

psi :: Double -> Double
psi = gsl_sf_psi
foreign import ccall SAFE_CHEAP "gsl_sf_psi" gsl_sf_psi :: Double -> Double

psi_1piy_e :: Double -> (Double,Double)
psi_1piy_e y = createSFR "psi_1piy_e" $ gsl_sf_psi_1piy_e y
foreign import ccall SAFE_CHEAP "gsl_sf_psi_1piy_e" gsl_sf_psi_1piy_e :: Double -> Ptr () -> IO CInt

psi_1piy :: Double -> Double
psi_1piy = gsl_sf_psi_1piy
foreign import ccall SAFE_CHEAP "gsl_sf_psi_1piy" gsl_sf_psi_1piy :: Double -> Double

complex_psi_e :: Double -> Double -> ((Double,Double),(Double,Double))
complex_psi_e x y = create2SFR "complex_psi_e" $ gsl_sf_complex_psi_e x y
foreign import ccall SAFE_CHEAP "gsl_sf_complex_psi_e" gsl_sf_complex_psi_e :: Double -> Double -> Ptr () -> Ptr () -> IO CInt

psi_1_int_e :: CInt -> (Double,Double)
psi_1_int_e n = createSFR "psi_1_int_e" $ gsl_sf_psi_1_int_e n
foreign import ccall SAFE_CHEAP "gsl_sf_psi_1_int_e" gsl_sf_psi_1_int_e :: CInt -> Ptr () -> IO CInt

psi_1_int :: CInt -> Double
psi_1_int = gsl_sf_psi_1_int
foreign import ccall SAFE_CHEAP "gsl_sf_psi_1_int" gsl_sf_psi_1_int :: CInt -> Double

psi_1_e :: Double -> (Double,Double)
psi_1_e x = createSFR "psi_1_e" $ gsl_sf_psi_1_e x
foreign import ccall SAFE_CHEAP "gsl_sf_psi_1_e" gsl_sf_psi_1_e :: Double -> Ptr () -> IO CInt

psi_1 :: Double -> Double
psi_1 = gsl_sf_psi_1
foreign import ccall SAFE_CHEAP "gsl_sf_psi_1" gsl_sf_psi_1 :: Double -> Double

psi_n_e :: CInt -> Double -> (Double,Double)
psi_n_e n x = createSFR "psi_n_e" $ gsl_sf_psi_n_e n x
foreign import ccall SAFE_CHEAP "gsl_sf_psi_n_e" gsl_sf_psi_n_e :: CInt -> Double -> Ptr () -> IO CInt

psi_n :: CInt -> Double -> Double
psi_n = gsl_sf_psi_n
foreign import ccall SAFE_CHEAP "gsl_sf_psi_n" gsl_sf_psi_n :: CInt -> Double -> Double